Im Yoona, a twenty two year old author, has just finished promotions for her second book, and now she is back in her apartment in downtown Seoul. Once upon a Friday, she suddenly wants to write again. But about what? Inside of her apartment, she couldn't find any inspiration to write, so she decides to go out and search Seoul city for a guiding light.

Valentine's Day is coming, and on this look at a day in the life of love, stories criss-cross and collide. There's a secret admirer. Failed chocolates. A song written just for her. A visit to the cemetery. Sunflowers and lollipops. A long-awaited